Method for setting up highlight and shadow point density values of original pictures to a picture reproducing machine
US4371260A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1981 |
| Grant date | Feb 1, 1983 |
| Priority date | — |
| Expiry date | Mar 5, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4072
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for setting up density values of highlight and shadow points of original pictures to a picture reproducing machine such as a color scanner and a color facsimile, wherein one of the original pictures now being scanned is discriminated to output a discrimination signal, and wherein the highlight and the shadow point density values or values corresponding to a density range of the one original picture are read out of a memory in which the highlight and the shadow point density values or the values corresponding to the density ranges of the original pictures are stored, by addressing the memory by means of the discrimination signal, and then are set up to the picture reproducing machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.